Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G31-002-30 found under Water Emulsion Sealer And Underc by Navico Inc. The National Stock Number assigned to this part is 7930014122356, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like G31-002-30.